Fountain-pen.



PATENTBD JULY 25, 1905.

T. P. AMBROSB. FOUNTAIN PEN.

APPLICATION FILED DE0.6.1904.

ATTORNEYS nnrrnn sfrarns PATENT OFFIOE.

FOUNTAIN-PEN.

Specification of Letters Patent.

Patented July 25, 1905.

Application filed December 6, 1904. Serial No. 235,677.

To @ZZ whom, t muy concern:

Be it known that I, THOMAS I. AMBRosE,

a citizen of the United States, and a resident of Cincinnati, in thecounty of Hamilton and State of Ohio, have invented a new and ImprovedFountain-Pen, of which the following is a full, clear, and exactdescription.

My invention relates to fountain-pens, and is especially concerned witha filler therefor.

The principal objects of the invention are to provide means for quicklyand efliciently iilling pens of this character and to providefor a readyflow of the ink to the pen.

Reference is to be had to the accompanying drawings, forming a part ofthis speciiication, in which similar characters of reference indicatecorresponding parts in both the iigures.

Figure l is a central longitudinal sectional view showing one form of myinvention in position for filling and Fig. 2 is a central longitudinalsection on a line at ri ht angles to the line upon which Fig. l is taen,showing the pen filled with ink and entirely closed.

The pen is provided with a case a, as usual, to which a tip is removablyattached, the tip being provided with a pen c in the usual or anydesired manner. Upon the tip b is removably secured a coupling d, towhich is attached a compressible receptacle or ink-reservoir e,preferably made of rubber. This receptacle is surrounded by a spring f,which extends from the tip b to the upper end of the casing. Above thespring and receptacle is a plunger g, which is provided with a stem hand a button k. The stem passes. through a perforation l in the upperend of the casing. The pen is provided with the usual caps m and n.

The manner of filling the pen will be obvious. The casing a is held inthe hand and one linger employed to press upon the button 7c, so as todepress the plunger g and compress the receptacle e. The pen is thendipped in an ink-well in the manner illustrated in Fig. l and thepressure on the button released. This will permit the spring andreceptacle to expand and draw the ink up into the latter, the pressureof the atmosphere on the inlr causing the receptacle to come intointimate contact with the spring,

so that the receptacle and spring will move together. In use the ink wilreadily flow from the receptacle to the pen, and in case of anobstruction it can be forced through the pen by the application of aslight pressure upon the button c.

I am aware that fountain-pens have been made heretofore withcompressible ink-receptacles; but my invention presents obviousadvantages over such constructions, providing for the more readyexpansion of the receptacle to draw the ink into it and also providingfor preventing the collapse of the receptacle to force ink from the penfaster than would be desired in writing.

It will be understood that the plunger g is separable from the springand receptaclel and that it can be entirely removed from the casing, asis also true of the receptacle itself. The parts are consequently soconstructed as to be readily accessible for cleaning and removing ofobstructions.

It is to be understood that many modifications can be made in the formof device illustrated in the drawings without departing from the spiritof my invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A fountain-pen comprising a compressible receptaclefor ink, a plunger bearing upon the rece tacle, and a spring surroundingthe receptac e and bearing on the plunger.

2. In a fountain-pen, the combination of a casing, a tip for retaining apen removably mounted upon the casing, a coupling removably mounted uponthe tip and within the casing7 a longitudinally-compressible tubularreceptacle of rubber secured to said coupling and located within saidcasing, a spring surrounding said receptacle and in contact therewith,said spring bearing at one end upon the end of the tip, and a plunger atthe other end of the casing adapted to bear upon the spring andreceptacle, said plunger being provided with a rod extending through theend of the casing.

3. In a fountain-pen, the combination of a casing, a tip for retainingthe pen removably mounted upon the casing, a coupling removablyconnected with the tip within the casing, a longitudinally-oompressihletubular In testimony whereof I have signed my name to this speoilioationin the presence of two subscribing witnesses.'

THOMAS P. AMBROSE.

lVitnessos:

JNO. M. RHTER, ALBERT E. FAY.

